Use "" to specify phrases (e.g. "to be or not to be")
Prefix * for left (*itions), or
Suffix : * for right truncation (e.g. Tele*). Append a ~ for phonetic search (e.g. feuleton~, gugl~).
:N (where N is a number) to increase (positive number) or decrease (negative number) the significance of a term (e.g. engine:-2)
Use combination of * and ? for glob matching (e.g. o?a?a, ahm*di*ad, l?banon)
For fields or paths use / (e.g. title/ibu)